Package org.elasticsearch.search.aggregations.bucket.filter

Class FilterByFilterAggregator

java.lang.Object

org.elasticsearch.search.aggregations.BucketCollector

org.elasticsearch.search.aggregations.Aggregator

org.elasticsearch.search.aggregations.AggregatorBase

org.elasticsearch.search.aggregations.bucket.BucketsAggregator

org.elasticsearch.search.aggregations.bucket.filter.FiltersAggregator

org.elasticsearch.search.aggregations.bucket.filter.FilterByFilterAggregator

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.lucene.search.Collector, Releasable

public class FilterByFilterAggregator
extends FiltersAggregator

Collects results by running each filter against the searcher and doesn't build any LeafBucketCollectors which is generally faster than FiltersAggregator.Compatible but doesn't support when there is a parent aggregator or any child aggregators.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FilterByFilterAggregator.AdapterBuilder<T>	Builds FilterByFilterAggregator when the filters are valid and it would be faster than a "native" aggregation implementation.

Nested classes/interfaces inherited from class org.elasticsearch.search.aggregations.bucket.filter.FiltersAggregator

FiltersAggregator.KeyedFilter

Nested classes/interfaces inherited from class org.elasticsearch.search.aggregations.bucket.BucketsAggregator

BucketsAggregator.BucketBuilderForFixedCount<B>, BucketsAggregator.BucketBuilderForVariable<B>, BucketsAggregator.ResultBuilderForVariable<B>, BucketsAggregator.SingleBucketResultBuilder

Nested classes/interfaces inherited from class org.elasticsearch.search.aggregations.Aggregator

Aggregator.BucketComparator, Aggregator.Parser, Aggregator.SubAggCollectionMode

Field Summary

Fields inherited from class org.elasticsearch.search.aggregations.bucket.filter.FiltersAggregator

FILTERS_FIELD, OTHER_BUCKET_FIELD, OTHER_BUCKET_KEY_FIELD, otherBucketKey

Fields inherited from class org.elasticsearch.search.aggregations.bucket.BucketsAggregator

docCountProvider

Fields inherited from class org.elasticsearch.search.aggregations.AggregatorBase

collectableSubAggregators, DEFAULT_WEIGHT, name, parent, subAggregators

Fields inherited from class org.elasticsearch.search.aggregations.BucketCollector

NO_OP_COLLECTOR

Method Summary

Modifier and Type	Method	Description
void	collectDebugInfo(BiConsumer<String,Object> add)	Collect debug information to add to the profiling results.
protected LeafBucketCollector	getLeafCollector(org.apache.lucene.index.LeafReaderContext ctx, LeafBucketCollector sub)	Instead of returning a LeafBucketCollector we do the collection ourselves by running the filters directly.

Methods inherited from class org.elasticsearch.search.aggregations.bucket.filter.FiltersAggregator

build, buildAggregations, buildEmptyAggregation

Methods inherited from class org.elasticsearch.search.aggregations.bucket.BucketsAggregator

bucketComparator, bucketDocCount, buildAggregationsForFixedBucketCount, buildAggregationsForSingleBucket, buildAggregationsForVariableBuckets, buildSubAggsForAllBuckets, buildSubAggsForBuckets, buildSubAggsForBuckets, close, collectBucket, collectExistingBucket, descendsFromGlobalAggregator, getDocCounts, grow, incrementBucketDocCount, maxBucketOrd, preGetSubLeafCollectors, prepareSubAggs, resolveSortPath, rewriteBuckets

Methods inherited from class org.elasticsearch.search.aggregations.AggregatorBase

addRequestCircuitBreakerBytes, bigArrays, buildEmptySubAggregations, doClose, doPostCollection, doPreCollection, getLeafCollector, metadata, name, parent, pointReaderIfAvailable, postCollection, preCollection, scoreMode, searcher, subAggregator, subAggregators, topLevelQuery, toString

Methods inherited from class org.elasticsearch.search.aggregations.Aggregator

buildTopLevel, resolveSortPathOnValidAgg

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Details

getLeafCollector

protected LeafBucketCollector getLeafCollector(org.apache.lucene.index.LeafReaderContext ctx,
 LeafBucketCollector sub)
                                        throws IOException

Instead of returning a LeafBucketCollector we do the collection ourselves by running the filters directly. This is safe because we only use this aggregator if there isn't a parent which would change how we collect buckets and because we take the top level query into account when building the filters.

Specified by:

getLeafCollector in class AggregatorBase

Throws:

IOException

collectDebugInfo

public void collectDebugInfo(BiConsumer<String,Object> add)

Description copied from class: Aggregator

Collect debug information to add to the profiling results. This will only be called if the aggregation is being profiled.

Well behaved implementations will always call the superclass implementation just in case it has something interesting. They will also only add objects which can be serialized with StreamOutput.writeGenericValue(Object) and XContentBuilder.value(Object). And they'll have an integration test.

Overrides:

collectDebugInfo in class FiltersAggregator